Gas-burner



E. G. STAHLMAN.

GAS BURNER.

APPLlcATloN FILED 111211.15. 1919.

Patented Feb. 3, 1920.

unirsi) sfrA'rEs PATENT ormoni.

EDV/'ARD Gr. STAHLLIAN, OF POMONA, CALIFORNA.

GAS-BURNER.

Application filed April 15, 1919.

To all whom t may concern:

Be it known that l, EDWARD G. STAHL- MAN, a citizen of the UnitedStates, residing at Pomona, in the county of Los Angeles and State ofCalifornia, have invented a new and useful Gas-Burner, of which thefollowing is a specification.

The present invention relates to gas burners, the object being toprovide a gas burner wherein the amount of air to mix with the gas maybe regulated, and wherein the air is uniformly and evenly supplied tothe mixing chamber and gas, whereby a more perfect mixture andcombustion is produced, thereby rendering the burner more quiet andobviating the sputtering so common in gas burners.

A further object of the invention is to provide a gas burner which isprovided with a spreader and which will not be extinguished of its ownaccord.

nother object of the present invention is to provide a gas burner whichis adapted to stoves and furnaces of various constructions and which maybe readily applied thereto without altering the parts of the same.

provide a burner which will allow the gas to thoroughly mingle with theoxygen before the same is ignited.

An additional object of the invention is to providey a burner forheating purposes which consists of few parts, is simple inconstruction., and which may be manufactured and sold at a minimum cost.

With the above objects and advantages in view the invention consists ofcombinations of elements, constructions and operations, and details allof which will be hereinaftcr fully set forth in the following disclosureand recited in the sub-joined claims.

On the drawings Figure 1 is a side elevation of my improved burner inoperative position; A

Fig. 2 is a longitudinal sectional view of the same; and

Fig. 3 is a transverse sectional view taken on line 3-3 of Fig. 2.

Referring in detail to the drawings the numeral. 5 denotes a stove ofthe usual construction to which my improved burner is applied.

My improved burner consists of a mixing chamber 10 having both endsprovided with interior screw threads 11. This mix- Specicaton of LetterslPatent.

It is another object of the invention to Patented Feb. 3, 1920.

Serial No. 290,323.

ing chamber is in the form of a T-coupling and has an air inlet 12. Abushing 13 is threaded in one end of the T-coupling 10 and is formedwith interior screw threads 14. A pipe 15 is threaded in the bushing 13and is adjustable therein. This pipe 15 extends within the mixingchamber and is movable longitudinally within the same and is capable ofmoving the entire length of the same. An eccentric shaped valve 16 isformed upon the inner end of the pipe 15 and is provided with an outlet17 through which 'the gas passes. The opposite end of this pipe 15 isthreaded and is adapted to be connected with the usual flexible tubingwhich in turn is connected with the gas supply (not shown).

A nut 18 is threaded upon the pipe 15 and is adapted to abut the bushing13, this limits the inward movement of the pipe 15 in the mixingchamber. The air in entering the inletv l2 has to pass around the valve1G and the volume of air is either increased or diminished by moving thevalve either to the right or left of this opening or inlet 12. Inaddition, it should be noted that the air which is admitted through theinlet 12 at one side of the mixing chamber necessarily requires means ofpreventing a greater flow of air to the mixing chamber on the sidenearest the air inlet, owing to the air taking the course of leastresistance. Should the head be centrally located, a greater amount ofair will be admitted on the side nearest the opening and to obviate thisthe head` or eccentric shaped valve 16 is provided so that by turning itto the position opposite to that shown in Figs. 2 and 3, in addition tomoving longitudinally or translating, said valve is adapted to bebrought in closer relation to the opening or wall of the mixing chamberat the opening side thereof, as shown in dotted lines in F fig. 3 whichwill cause the opening to be gradually increased in width toward the.side opposite the opening which will cause an approximately even flow ofair to the mixing chamber on all sides or the full circumference of thevalve head, thereby producing a perfect mixture which is necessary toperfect combustion, in addition to rendering the burner quiet andobviating the sputtering so common in gas burners. The cross-section ofthe opening formed by the eccentric-relation of the valve to the wall ofthe circular pipe forming the mixing chamber, is taperedcircun'iferentially, being oppositeljy tapered from its intermediatepoint toward its vends or crescent shaped as shown. The adjustmentdescribed is also to prevent the air from being s0 i'ar excluded frompassage through the mixing chamber as to cause the burner to beextinguished should adjustment be attempted by an inexperienced personor through ignorance in moving the head too elosepto the reduceddiameter ot the mixingV chamber or burner proper.

The burner proper consists of relatively large pipe or conduit 16 whichextends through the stove and is threaded in the forward end oit themixing chan'iber 10. A lock mit 19 is threaded upon this member 16 andis threaded against the Wall of the stove 5. The pipe or conduit 16 isprovided with a plurality of longitudinal slits, this end of the tubebeing flared so as to spread the lame. This manner of Aliorming theburner also serves to prevent the light 'from going out on its ownaccord.

This embodiment of the invention is considered the preferredconstruction, but it is to lbe understood that the same is susceptibleto various modiiications, and that 'my limits of modification are onljTgoverned bythe appended claims.

`What is claimed is 1. In' a burner oi? the character described, amixing chamber having an air inlet, a pipe longitudinally adjustable inthe mixing chamber adapted to conduct the gas into the'same, aneccentric-'shaped valve on the end of the pipe having an outlet therein,the valve being movable across the air inlet, and a burner threaded inone end of the `mixing chamber.

2. In a gas burner, a mixing chamber having an air .inlet at one sidethereof, and having its opposite ends provided ivith interior screwthreads, a bushing threaded in one end of the mixing chamber, agas pipethreaded in the bushing and extending With the mixing chamber andlongitudinally adjustable therein, a valve iormedfupon the inner end ofthe gas pipe and having an opening therein, Ythe valve being movablebackward and forward across the airvinlet, a tube threaded in'theopposite end oi: the mixing chamber and having its outer end flaredoutwardly and provided withA a number of slits, to spread the Haine.

3. In a burner, a mixing chamber o'i circular cross-section having anair inlet at one side thereof, a gas pipe threaded in one end of themixing chamber and longitudinally adjustable therein, an eccentricshaped valve mounted on the inner end of the pipe and ha Ting an openingtherein, the valve beingvmovable across the air inlet, and a burnerthreaded in the opposite end oit the mixing chamber.

Ll. ln a gas burner, a mixing chamber including an air inlet at one sidethereof, a gas pipe longitudinally adjustable in the mixing chamber, avalve of eccentric formation formed upon the end or the gas pipe andhavingan opening therein, the valve being movable across the air inlet,and providing a oircumiierentia-llyv extending passage around the saineand between it and the pipe, said passage cross sectionallyA tapering inopposite directions, and a flared burner threaded in the forvvard end ofthe mixing chamber.

In a burner, a mixing chamber, said mixing chamber having an air inletat one side thereof, a ifuel pipe longitudinall)Y adjusi'alde in themixing' chamber, and an eccentric shaped valve disposed upon the end ofthe fuel pipe and cooperating with the wall or the mixing chamber.

6. A gas burner comprising a mixing chamber having an air inlet at oneside, a fuel supply pipe threaded in one end thereof, and adapted whenturned to be fed forward or retracted, and a head on saidlpipe forming avalve, said head Vforming-g' a circumferential passage or channelbetween it and the interior wall of the -mixing chamber, said passagebeing tapered in cross-section.

7. In a burner, a mixing chamber, said Amixing chamber being ofcircularcross section and having an air inlet at one side thereof, a Yfue] pipeextending into the mixing chamber, and an eccentric shaped valvedisposed upon the end oi the fuel pli-pel and cooperating with the Walloi the mixing chamber to produce a crescent shaped passage betiveen thevalve and the Wall of the mixing chamber opposite *to the air inlet. intestimony that I claim the foregoing as my own, l have hereto a'lixed mysignature in the presence ottivo Witnesses.

. EDVARD G. STAHLli/[N iditnesses z lVM. MoMULLiN, Gro. R. TYEN.

